All posts by MikeB
Below are all of MikeB's postings, with the most recent are at the bottom of the page.
Stephen: I have no idea if your TV has the correct tuner for the UK - you need to check. If not, get an external receiver.
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Phil: Check your system - transmitters dont have a weak signal for months on end.
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Geoff Gaunt: Actually check the signal path. Occam's razor says the the simplest explaination is probably the most likely. It might be the tiles, but its much more likely that you have a leak....
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Richard: No, it just shows you shouldn't retune if you lose signal, because you lose the correct transmitter as well. You havn't given a postcode, but its likely in your retune that you've just found a transmitter in much the same bearing as the Oxford one.
Your problem is unlikely to be the Oxford transmitter, since there seems to be no problems with it. But its highly likely that there is a problem somewhere in your system - a frayed cable, loose connection, etc. Check signal strength - if its low, check the signal path.
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Geoff Gaunt: What was your signal strength when you put the aerial in? The wet tiles might well be having a dampening effect, but the signal strength loss seems to be only about 6% - so perhaps your on the margin anyway, and the wet tiles are pushing the system under the treshold for a decent signal.
Put your postcode into the site - if you should get a fantastic signal according to the predictors, and your not (OK, so loft aerials are as much magic as science), then its not the wet tiles, but something else.
Yes, a roof mounted aerial would be better, but it might be your setup is fine, but its a little under the weather at the moment.
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Edward J Hruszka: I'm on Waltham, and the transmitters fine. Check your signal strength - is it very high or very low? If its very high, look at 'too much of a good thing' on this site, and if its very low, then you have a problem with your system, perhaps a loose wire, etc.
Too high a signal will lead to breakups, quality of signal being very low, etc - if you've got a booster, etc, then that might be causing the problem. But 'no signal' with a low strength means just that - the signal is too weak, and thats down to your system.
We really need a postcode and which channels the breakup is happening on.
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Mike Brooks: Anthony's advice is excellent - I'm just wondering what sort of signal strength you've enjoyed, being so far from Winter Hill.
As for why you can watch Iplayer fine, its simply because its via the internet, and has nothing at all to do with your aerial.
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Stephen: If all the other channels are working in the 30-50% range and your just 24km from Mendip, then its unlikely that ' the roof aerial is still working OK', or at least something is up with part of your system. At that distance, you might even need an attenuator - 75% should be perfect, so your at the low end of workable, even on the OK channels.
Com 7 is a weaker signal with lower power, so if there is a problem, thats the canary in the coalmine. Check your system, starting back from the TV - could be something as simple as a dodgy fly lead. Then follow the path up. But it sounds like your system is just hanging on, and the probalems your getting in heavy rain point to moisture getting in somewhere, and kiling the signal. Once it dries out, it gets a bit better, but the underlying problem will not go away.
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Rob Cameron: If the problem was caused by a high pressure system, then certain frequencies can get hit more than others, and if the HD channels are on a slightly lower power as well, that can also have an effect.
And check your actual signal strength - could be too high or too low from the original transmitter.
People will often swear blind that its the transmitter at fault, but they tend to say if it is (although sometimes there is a delay if its unexpected), and its seldom very long. 90% of the time, its the setup or another problem inside the home.
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Friday 25 November 2016 9:36AM
Geoff Gaunt: Check your system - a frayed wire etc could be the cause of that mux being low (it doesn't always follow that the weakest mux goes first). And the fact that you had lots of rain when the problem occured points to a possible problem with moisture in the system. Even in a loft, rain can get in, etc.